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Replace original removed HD after failed disk upgrade?
Hi,
We have a ReadyNAS Duo which had 2 x Seagate 500GB HDs set up as a redundant RAID disk with 500GB available storage. It was becoming full, so I checked the hard disk compatibility list and ordered 2 x Seagate 2TB disks (ST2000DM001). I hot-swapped the first one yesterday, and got an overnight alert that it had initialized, then another email this morning to recommend to recommend a Resync, followed immediately by an email alert advising that the disk had failed. In FrontView the drive shows as ST2000DM001-1CH164. Could it be that it's the wrong firmware version?
At any rate, the drive therefore is now no longer redundant. I'm going to try the second 2TB disk when I get to the office later today, but in case that fails, my key question is:
In the worst case scenario, can I simply reinsert the original 500 GB that I pulled yesterday? Obviously, the disk has the data on it that is a dupe of the data state as of yesterday, which will have changed since then as we've continued working on the projects that are stored on the NAS. There was nothing wrong with the 500GB disk, so I'd rather have the redundancy reinstated until we could get further 2TB disks to try again, but would this cause problems, or would the ReadyNAS simply bring the reinserted disk into line with the disk with the newer data on it?
Many thanks for any help/advice that anyone can offer on this.
Adam
We have a ReadyNAS Duo which had 2 x Seagate 500GB HDs set up as a redundant RAID disk with 500GB available storage. It was becoming full, so I checked the hard disk compatibility list and ordered 2 x Seagate 2TB disks (ST2000DM001). I hot-swapped the first one yesterday, and got an overnight alert that it had initialized, then another email this morning to recommend to recommend a Resync, followed immediately by an email alert advising that the disk had failed. In FrontView the drive shows as ST2000DM001-1CH164. Could it be that it's the wrong firmware version?
At any rate, the drive therefore is now no longer redundant. I'm going to try the second 2TB disk when I get to the office later today, but in case that fails, my key question is:
In the worst case scenario, can I simply reinsert the original 500 GB that I pulled yesterday? Obviously, the disk has the data on it that is a dupe of the data state as of yesterday, which will have changed since then as we've continued working on the projects that are stored on the NAS. There was nothing wrong with the 500GB disk, so I'd rather have the redundancy reinstated until we could get further 2TB disks to try again, but would this cause problems, or would the ReadyNAS simply bring the reinserted disk into line with the disk with the newer data on it?
Many thanks for any help/advice that anyone can offer on this.
Adam
14 Replies
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- I want to add that replacing a 2 TB drive with a 500 GB drive is not supported with XRAID - so you went astray when you did that.
- So I understand this correctly… Even though the share size is still limited to 461 GB by the 500 GB HD in slot 2, it is not possible to replace a dead 2 TB HD in slot 1 with a 500 GB HD (which is still large enough for the share)?
- I think you mean the volume size, not the share size.
If you only installed a single 2 TB drive, the volume should never have expanded. It is reasonable to expect that you could then reinstall a 500 GB drive, though I have never tried it. As I noted earlier, that was not guaranteed and might fail.
The process I recommended earlier in the thread (powering down the NAS, and installing the original drive in slot-1 with slot-2 empty) would have worked. - Apologies: I'd realised that I'd got volume/share muddled before you replied. We only have one share on the volume, which had caused my momentary confusion.
The reason I hadn't followed your advice to reinstall the original disc 1 when powered down without the original disk 2 was that by that point the data on disk 2 was newer than the data on disk 1 (which had been out of the Duo for a couple of days).
I guess I'll keep my fingers crossed that the WD Reds resolve everything next week. *crosses fingers*
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